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Webster 1913 Edition

Noun.

One who works in a tin mine.

One who makes, or works in, tinware; a tinman.

Noun.

[from tin.] One who works in the tin mines.

tinner ‎(plural tinners)

tinsmith
a worker in a tin mine
- Blackstone
  The stannary courts of Devonshire and Cornwall, for the administration of justice among the tinners therein, are also courts of record.